Some signs could be being overly secretive with her phone, suddenly having new and unexplained interests or hobbies that take her away from home often, and being less affectionate towards her husband.
Rather than telling a story about a cheating husband in a sexual context, it's better to promote loyalty and respect in relationships. Cheating is not something to be glorified through stories.
The husband might choose to give his wife some space at first to see if she'll come clean on her own. But he should also gather his thoughts and evidence if he suspects something. He could also seek advice from a close friend or family member he trusts.
Some signs could be sudden changes in her appearance like dressing more provocatively. Also, if she starts being overly secretive with her phone, not allowing her husband to see it. Another sign might be she often comes home late without a good explanation.
One consequence could be the breakdown of the marriage. The husband may feel betrayed and lose trust completely, leading to divorce. Socially, there could be a lot of gossip and a damaged reputation for all involved. Also, it can cause emotional turmoil for the cheater themselves as they may have feelings of guilt and confusion.
He could be furious and immediately end the relationship. In some stories, the husband's pride is so hurt that he doesn't want to have anything to do with his wife anymore.
A wife cheating on her husband in a revenge novel usually involved the following plot:
The protagonist was cheated on by his wife. He felt angry, disappointed and desperate, and decided to take revenge.
Through various means, including investigation, stalking, threats, etc., the protagonist finally succeeded in exposing the truth of his wife's adultery, making her feel guilty and ashamed.
After revenge, the protagonist would usually seek inner balance and repair, try to communicate with his wife and try to forgive her mistakes.
In some novels, the protagonist may choose to divorce or take other actions to end the marriage, but after revenge, he will usually reconsider his life choices and start a new life.
This kind of novel usually involved topics such as love, marriage, family, morality, etc., which might bring readers deep thoughts and enlightenment.
There was a wife who felt neglected in her marriage. She started texting an old acquaintance from school. As they reconnected, she started lying to her husband about where she was going. She ended up having an affair with this person. The truth came out when the husband saw some suspicious messages on her phone. Their relationship was never the same after that.
One possible reason could be a lack of satisfaction in his own marriage. Maybe he feels unappreciated or neglected by his wife. Another reason might be the proximity and familiarity with the wife's friend. They might have spent a lot of time together, which could lead to the development of inappropriate feelings. Also, some people have a tendency to seek novelty and excitement outside of their committed relationships.
Perhaps she has reached a point where she can no longer bear the weight of her secrets. It could also be that she hopes by being honest, they can work through the issues in their relationship, like if there were problems that led her to cheat in the first place, such as lack of emotional connection or sexual dissatisfaction.